Question

the sum of the ages of Madan and Mohan is 16 years 4 years ago Madan was three times as old as Mohan find their present age​

Answer 1

LET THE AGES OF MADAN TO BE X AND MOHAN BE Y

THEN X + Y = 16

NOW AS GIVEN

4 YEAR BACK

=> X-4 + Y -4= 8

AS

Y-4 = 3 (X-4)

NOW PUTTING IT A LINEAR EQUATION OF X

THEN

X-4 + 3(X -4) = 8

X - 4 + 3X - 12 = 8

4X = 24

X = 6 YEAR

AND AS X = AGE OF MADAN

THEN

AGE OF MOHAN = 16 - 6(AGE OF MADAN)

= 10 YEARS

THEN AGE OF MADAN = 6

AND AGE OF MOHAN = 10